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Model
SA-AK340P SA-AK340PC SA-AK340PL SA-AK340E SA-AK340EB SA-AK340EG SA-AK340EE
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
585.23 KB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
Audio / CD STEREO SYSTEM
File
sa-ak340p-sa-ak340pc-sa-ak340pl-sa-ak340e-sa-ak340.pdf
Date

Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE Service Manual / Supplement ▷ View online

SA-AK340P
SA-AK340PC
SA-AK340PL
SA-AK340E
SA-AK340EB
SA-AK340EG
SA-AK340EE
Colour
(S)... Silver Type
CD Stereo System
Subject :  Additional Contents (F61 troubleshooting)
Please use this manual together with the service manual for Model No. [SA-AK340P/PC-S, Order No.
MD0510381C1],
[SA-AK340PL-S,
Order
No.
MD0512469C3],
[SA-AK340E/EB/EG-S,
Order
No.
MD0512471C2] & [SA-AK340EE-S, Order No. MD0512483C3].
ORDER NO. MD0609327SE
A6
1 Background
This technical document illustrates the checking procedures when upon detecting the error code of “F61” after power up.
This is to troubleshoot the Power P.C.B. upon detecting the error code.
1.1. Troubleshooting Guide
The table below shows the symptoms and checking items for troubleshooting the error code.
Symptom
Checking Items
Repair Items
Remarks
FL display blinking with
abnormal segment when
power ON the set or F61
Check the solderbility condition of
the Power P.C.B.
 • Is there any solder crack at
transistor area? (Q5101,
Q5102, Q5111 & Q5112)
 • Touch-up the solder crack area.
Refer to Fig 2.
First power ON display
immediate show “F61”.
Check all the supply line
 • +/- VCC if more than +/- 29V,
check clamper circuit
components especially Q5110,
R5114 & D5102.
 • Check 15V, MOT12V, CD8V,
SW5V supply line.
• Change the defective parts.
 − Q5110 = B1GACFGA0002
 − R5114 = ERJ3GEYJ1R8V
 − D5102 = B0BA02600018
Refer to Fig 1.
Check speaker output by using
multimeter
 • If there is a DC voltage around
+/- 29V, check on the pcb, +/-
VCC point with every channel
output of D-Amp IC, if shorted,
that means D-Amp damage
already.
 • Change the defective D-Amp IC.
 − point 1 or 2 short to +/- VCC = change IC5301
 − point 3 or 4 short to +/- VCC = change IC5401
 − point 5 or 6 short to +/- VCC = change IC5501
 • IC part no.:C1AA00000755.
 − +VCC = C5101 (+ve leg)
 − - VCC = C5104 (-ve leg)
Power ON for a while then
only trigger F61. (Symptom
always happen)
Check the fan connection to the
Main P.C.B.
 • If the fan not proper connected,
F61 will trigger when the
volume increase.
 • Re-connect the fan to CN2810.
Refer to Fig 1.
Check +/- VCC supply balance
 • The +/- VCC supply should be
balance.
+ VCC = +29V and - VCC = -
29V.
If the supply is balance, try to
reduce the AC supply by 10%.
If the symptom does not
appear, that means the DC Det
line mis-trigger the F61.
 • It is due to the resistor tolerance and the DC Det circuit
setting is too sensitive to trigger F61.
Countermeasure:
 − Change R5112 & R5113 value as below:
 − For AK340 change to 390kΩ (Part No.
ERJ3GEYJ394V)
1.2. Location of replacement parts
This section includes the location of the parts for changes of improvement.
2
SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE
1.2.1. Location of Resistors (R5112, R5113 & R5114), Transistors (Q5110, Q5111 &
Q5112) & Diode (D5102)
Fig. 1
3
SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE
Fig. 2
Note:
Refer to Power P.C.B. diagram (page 78) for SA-AK340P/PC-S & SA-AK340EE-S.
Refer to Power P.C.B. diagram (page 80) for SA-AK340E/EB/EG-S & SA-AK340PL-S.
4
SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE
M0609 S/N
Display

Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE Service Manual / Supplement ▷ Download

  • DOWNLOAD Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE Service Manual ↓ Size: 585.23 KB | Pages: 4 in PDF or view online for FREE
  • Here you can View online or download the Service Manual / Supplement for the Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE Audio. Information contained in Panasonic SA-AK340P / SA-AK340PC / SA-AK340PL / SA-AK340E / SA-AK340EB / SA-AK340EG / SA-AK340EE Service Manual / Supplement (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.